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植物与环境二.生物与环境本课学习目标1、以仙人掌和龟背竹为例,了解耐旱和喜阴植物的特点。2、了解沙漠、高山、草原、热带雨林、池塘植物的特点,并能区分它们。3、知道温室的作用。xuzhou.99114.com/pifa-119/xuzhou.99114.com/pifa-130/xuzhou.99114.com/pifa-123/xuzhou.99114.com/pifa-122/xuzhou.99114.com/pifa-101/xuzhou.99114.com/pifa-105/xuzhou.99114.com/pifa-104/xuzhou.99114.com/pifa-107/xuzhou.99114.com/pifa-117/xuzhou.99114.com/pifa-115/xuzhou.99114.com/pifa-116/changzhou.99114.com/pifa-128/changzhou.99114.com/pifa-118/changzhou.99114.com/pifa-125/changzhou.99114.com/pifa-135/changzhou.99114.com/pifa-131/changzhou.99114.com/pifa-106/changzhou.99114.com/pifa-136/changzhou.99114.com/pifa-113/changzhou.99114.com/pifa-140/changzhou.99114.com/pifa-109/changzhou.99114.com/pifa-103/changzhou.99114.com/pifa-137/changzhou.99114.com/pifa-129/changzhou.99114.com/pifa-133/changzhou.99114.com/pifa-124/changzhou.99114.com/pifa-126/changzhou.99114.com/pifa-102/changzhou.99114.com/pifa-127/changzhou.99114.com/pifa-110/changzhou.99114.com/pifa-114/changzhou.99114.com/pifa-119/changzhou.99114.com/pifa-130/changzhou.99114.com/pifa-123/changzhou.99114.com/pifa-122/changzhou.99114.com/pifa-101/changzhou.99114.com/pifa-105/changzhou.99114.com/pifa-104/changzhou.99114.com/pifa-107/changzhou.99114.com/pifa-117/changzhou.99114.com/pifa-115/changzhou.99114.com/pifa-116/suzhou.99114.com/pifa-128/suzhou.99114.com/pifa-118/suzhou.99114.com/pifa-125/suzhou.99114.com/pifa-135/suzhou.99114.com/pifa-131/suzhou.99114.com/pifa-106/suzhou.99114.com/pifa-136/suzhou.99114.com/pifa-113/suzhou.99114.com/pifa-140/suzhou.99114.com/pifa-109/suzhou.99114.com/pifa-103/suzhou.99114.com/pifa-137/suzhou.99114.com/pifa-129/suzhou.99114.com/pifa-133/suzhou.99114.com/pifa-124/suzhou.99114.com/pifa-126/suzhou.99114.com/pifa-102/suzhou.99114.com/pifa-127/suzhou.99114.com/pifa-110/suzhou.99114.com/pifa-114/suzhou.99114.com/pifa-119/suzhou.99114.com/pifa-130/suzhou.99114.com/pifa-123/suzhou.99114.com/pifa-122/suzhou.99114.com/pifa-101/suzhou.99114.com/pifa-105/suzhou.99114.com/pifa-104/suzhou.99114.com/pifa-107/suzhou.99114.com/pifa-117/suzhou.99114.com/pifa-115/suzhou.99114.com/pifa-116/nantong.99114.com/pifa-128/nantong.99114.com/pifa-118/nantong.99114.com/pifa-125/nantong.99114.com/pifa-135/nantong.99114.com/pifa-131/nantong.99114.com/pifa-106/nantong.99114.com/pifa-136/nantong.99114.com/pifa-113/nantong.99114.com/pifa-140/nantong.99114.com/pifa-109/nantong.99114.com/pifa-103/nantong.99114.com/pifa-137/nantong.99114.com/pifa-129/nantong.99114.com/pifa-133/nantong.99114.com/pifa-124/nantong.99114.com/pifa-126/nantong.99114.com/pifa-102/nantong.99114.com/pifa-127/nantong.99114.com/pifa-110/nantong.99114.com/pifa-114/nantong.99114.com/pifa-119/nantong.99114.com/pifa-130/nantong.99114.com/pifa-123/nantong.99114.com/pifa-122/nantong.99114.com/pifa-101/nantong.99114.com/pifa-105/nantong.99114.com/pifa-104/植物名称仙人掌龟背竹环境条件干燥地区阴生植物区外部形态特征叶子退化了,变成了针状和刺状叶子大而绿观察记录龟背竹和仙人掌这两种植物的外部形态的差异为什么会有这么大?答:龟背竹的叶子大而绿是因为从土壤中吸收大量的水分,吸收的水大部分消耗于蒸腾作用,叶子是主要的蒸腾部位,大部分水都要从这里跑掉,所以长成这样。而仙人掌长期生长在却雨少水的沙漠里,为了适应酷旱的环境,经过千千万万年的演变过程,叶子退化了,变成了针状或刺状,体态变了样是最大限度地减少水分蒸腾。耐旱的本领植物名称仙人掌龟背竹耐旱的本领耐旱不耐旱形态与环境叶子退化,生长在干燥区叶子大而绿,生长在潮湿地区实验现象没有水滴有水滴环境植物及其形态特征沙漠幻灯片6植物稀少,叶子退化,根深而叶不茂的怪样子高山植物体积矮小,茎叶多毛,带针状是垫状植物草原幻灯片10丛生禾本科植物,是一种地带性植被类型热带雨林幻灯片8常绿高大的森林植被,树身具有多层结构,叶子茂密池塘幻灯片11水生植物,叶子柔软而透明,带有通气组织热带雨林1热带雨林2热带雨林3高山植被1高山植被2高山植被3草原草原2池塘1池塘2温室定义温室又称暖房,英文(greenhouse)。能透光、保温(或加温),用来栽培植物的设施。在不适宜植物生长的季节,能提供生育期和增加产量,多用于低温季节喜温蔬菜、花卉、林木等植物栽培或育苗等。根据植物生长的季节,能提供生育期和增加产量,多用于低温季节喜温蔬菜、花卉、林木等植物栽培或育苗等。温室的种类多,依不同的屋架材料、采光材料、外形及加温条件等又可分为很多种类,如玻璃温室、塑料聚碳酸脂温室;单栋温室、连栋温室;单屋面温室、双屋面温室;加温温室、不加温温室等。温室结构应密封保温,但又应便于通风降温。现代化温室中具有控制温湿度、光照等条件的设备,用电脑自动控制创造植物所需的最4层温室阳光板最佳环境条件。
本文标题:《植物与环境》课件1
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